CVE-2023-20109: Cisco IOS vulnerability

1. In CISA KEVCISA KEV catalogue10 Oct 2023
2. Exploited (reported): not seen
3. Scanning observed: not seen
4. Proof of concept public: not seen
5. Not established: not seen

DescriptionCVE.org

A vulnerability in the Cisco Group Encrypted Transport VPN (GET VPN) feature of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, remote attacker who has administrative control of either a group member or a key server to execute arbitrary code on an affected device or cause the device to crash. This vulnerability is due to insufficient validation of attributes in the Group Domain of Interpretation (GDOI) and G-IKEv2 protocols of the GET VPN feature. An attacker could exploit this vulnerability by either compromising an installed key server or modifying the configuration of a group member to point to a key server that is controlled by the attacker. A successful exploit could allow the attacker to execute arbitrary code and gain full control of the affected system or cause the affected system to reload, resulting in a denial of service (DoS) condition. For more information, see the Details ["#details"] section of this advisory.

• Cisco · IOS12.4(24)T; 12.4(24)T3; 12.4(22)T1; 12.4(24)T5; 12.4(24)T4; 12.4(22)T and 668 more
• Cisco · Cisco IOS XE Software3.7.0S; 3.7.1S; 3.7.2S; 3.7.3S; 3.7.4S; 3.7.5S and 358 more

Exploitation

Exploited in the wild. Listed in the CISA Known Exploited Vulnerabilities catalogue.

CISA KEV

Listed since 10 Oct 2023 · catalogue entry

Public check

No public nuclei template

Weakness

Out-of-bounds Write · Memory Corruption

Vendor

Cisco

Published

September 2023

Band

Exploited in the wild, September 2023

1. 10 Oct 2023
   CISA added it to the KEV catalogue CISA

• NVD entrynvd.nist.gov
• CISA KEV cataloguecisa.gov
• CVE recordcve.org
• Weakness CWE-787cwe.mitre.org
• sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvsec.cloudapps.cisco.com